Add simple BitSet class.
adjusted to coding standard
implemented BitSet::next and BitSet::size
wip: liveness
more swap-idiom fun
more features in BitSet
don't waste space in BitSet
compute reduced reachable
added comment
adding noalias to returned pointer of thorin_malloc
const correctness
some dump improvements
local pattern to eliminate a useless Enter
Remove all attributes in post-patcher.
Merge branch 'master' into branch